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Merge branch 'master' of https://github.com/xinyigao/rt-thread-1.git

This commit is contained in:
Meco Man 2022-01-25 23:20:41 -05:00
parent 9b44734643 8b0f50b7e2
commit 2962a868c7
1 changed files with 122 additions and 11 deletions
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133
bsp/imxrt/libraries/drivers/drv_i2c.c
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@ -18,7 +18,7 @@
#define LOG_TAG "drv.i2c" #define LOG_TAG "drv.i2c"
#include <drv_log.h> #include <drv_log.h>
#if !defined(BSP_USING_I2C1) && !defined(BSP_USING_I2C2) && !defined(BSP_USING_I2C3) && !defined(BSP_USING_I2C4) #if !defined(BSP_USING_I2C1) && !defined(BSP_USING_I2C2) && !defined(BSP_USING_I2C3) && !defined(BSP_USING_I2C4) && !defined(BSP_USING_I2C5)&& !defined(BSP_USING_I2C6)
#error "Please define at least one BSP_USING_I2Cx" #error "Please define at least one BSP_USING_I2Cx"
#endif #endif
@ -35,6 +35,9 @@ struct imxrt_i2c_bus
volatile rt_uint32_t msg_ptr; volatile rt_uint32_t msg_ptr;
volatile rt_uint32_t dptr; volatile rt_uint32_t dptr;
char *device_name; char *device_name;
#ifdef SOC_IMXRT1170_SERIES
clock_root_t clock_root;
#endif
}; };
#if defined (BSP_USING_I2C1) #if defined (BSP_USING_I2C1)
@ -55,13 +58,28 @@ struct imxrt_i2c_bus
#define I2C4BUS_NAME "i2c4" #define I2C4BUS_NAME "i2c4"
#endif /*BSP_USING_I2C4*/ #endif /*BSP_USING_I2C4*/
#if defined (BSP_USING_I2C5)
#define I2C5BUS_NAME "i2c5"
#endif /*BSP_USING_I2C5*/
#if defined (BSP_USING_I2C6)
#define I2C6BUS_NAME "i2c6"
#endif /*BSP_USING_I2C6*/
#endif /* MIMXRT1015_SERIES */ #endif /* MIMXRT1015_SERIES */
#define LPI2C_CLOCK_SOURCE_DIVIDER 4 /* Select USB1 PLL (360 MHz) as master lpi2c clock source */
#define LPI2C_CLOCK_SOURCE_SELECT (1U)
#ifdef SOC_IMXRT1170_SERIES
/* Clock divider for master lpi2c clock source */
#define LPI2C_CLOCK_SOURCE_DIVIDER (12U)
#else
#define LPI2C_CLOCK_SOURCE_DIVIDER (0U)
/* Get frequency of lpi2c clock */ /* Get frequency of lpi2c clock */
#define LPI2C_CLOCK_FREQUENCY ((CLOCK_GetFreq(kCLOCK_Usb1PllClk) / 8) / (LPI2C_CLOCK_SOURCE_DIVIDER)) #define LPI2C_CLOCK_FREQUENCY ((CLOCK_GetFreq(kCLOCK_Usb1PllClk) / 8) / (LPI2C_CLOCK_SOURCE_DIVIDER + 1U))
#endif
#ifdef BSP_USING_I2C1 #ifdef BSP_USING_I2C1
static struct imxrt_i2c_bus lpi2c1 = static struct imxrt_i2c_bus lpi2c1 =
{ {
@ -96,9 +114,25 @@ static struct imxrt_i2c_bus lpi2c4 =
}; };
#endif /* RT_USING_HW_I2C4 */ #endif /* RT_USING_HW_I2C4 */
#ifdef BSP_USING_I2C5
static struct imxrt_i2c_bus lpi2c5 =
{
.I2C = LPI2C5,
.device_name = I2C5BUS_NAME,
};
#endif /* RT_USING_HW_I2C5 */
#ifdef BSP_USING_I2C6
static struct imxrt_i2c_bus lpi2c6 =
{
.I2C = LPI2C6,
.device_name = I2C6BUS_NAME,
};
#endif /* RT_USING_HW_I2C6 */
#endif /* MIMXRT1015_SERIES */ #endif /* MIMXRT1015_SERIES */
#if (defined(BSP_USING_I2C1) || defined(BSP_USING_I2C2) || defined(BSP_USING_I2C3) || defined(BSP_USING_I2C4)) #if (defined(BSP_USING_I2C1) || defined(BSP_USING_I2C2) || defined(BSP_USING_I2C3) || defined(BSP_USING_I2C4) ||defined(BSP_USING_I2C5) || defined(BSP_USING_I2C6))
static rt_size_t imxrt_i2c_mst_xfer(struct rt_i2c_bus_device *bus, static rt_size_t imxrt_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
struct rt_i2c_msg msgs[], struct rt_i2c_msg msgs[],
@ -123,7 +157,19 @@ static rt_err_t imxrt_lpi2c_configure(struct imxrt_i2c_bus *bus, lpi2c_master_co
RT_ASSERT(cfg != RT_NULL); RT_ASSERT(cfg != RT_NULL);
bus->parent.ops = &imxrt_i2c_ops; bus->parent.ops = &imxrt_i2c_ops;
#ifdef SOC_IMXRT1170_SERIES
clock_root_config_t rootCfg = {0};
rootCfg.mux = LPI2C_CLOCK_SOURCE_SELECT;
rootCfg.div = LPI2C_CLOCK_SOURCE_DIVIDER + 1;
CLOCK_SetRootClock(bus->clock_root, &rootCfg);
volatile uint32_t freq = CLOCK_GetRootClockFreq(bus->clock_root);
LPI2C_MasterInit(bus->I2C, cfg, freq);
#else
CLOCK_SetMux(kCLOCK_Lpi2cMux, LPI2C_CLOCK_SOURCE_SELECT);
CLOCK_SetDiv(kCLOCK_Lpi2cDiv, LPI2C_CLOCK_SOURCE_DIVIDER);
LPI2C_MasterInit(bus->I2C, cfg, LPI2C_CLOCK_FREQUENCY); LPI2C_MasterInit(bus->I2C, cfg, LPI2C_CLOCK_FREQUENCY);
#endif
return RT_EOK; return RT_EOK;
} }
@ -221,6 +267,37 @@ static rt_size_t imxrt_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
{ {
if (imxrt_i2c->msg[i].flags & RT_I2C_RD) if (imxrt_i2c->msg[i].flags & RT_I2C_RD)
{ {
if ((imxrt_i2c->msg[i].flags & RT_I2C_NO_START) != RT_I2C_NO_START)
{
if (LPI2C_MasterStart(imxrt_i2c->I2C, imxrt_i2c->msg[i].addr, kLPI2C_Write) != kStatus_Success)
{
i = 0;
break;
}
while (LPI2C_MasterGetStatusFlags(imxrt_i2c->I2C) & kLPI2C_MasterNackDetectFlag)
{
}
if (LPI2C_MasterRepeatedStart(imxrt_i2c->I2C, imxrt_i2c->msg[i].addr, kLPI2C_Read) != kStatus_Success)
{
i = 0;
break;
}
}
else
{
if (LPI2C_MasterStart(imxrt_i2c->I2C, imxrt_i2c->msg[i].addr, kLPI2C_Read) != kStatus_Success)
{
i = 0;
break;
}
while (LPI2C_MasterGetStatusFlags(imxrt_i2c->I2C) & kLPI2C_MasterNackDetectFlag)
{
}
}
if (LPI2C_MasterStart(imxrt_i2c->I2C, imxrt_i2c->msg[i].addr, kLPI2C_Read) != kStatus_Success) if (LPI2C_MasterStart(imxrt_i2c->I2C, imxrt_i2c->msg[i].addr, kLPI2C_Read) != kStatus_Success)
{ {
i = 0; i = 0;
@ -244,9 +321,17 @@ static rt_size_t imxrt_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
i = 0; i = 0;
break; break;
} }
while (LPI2C_MasterGetStatusFlags(imxrt_i2c->I2C) & kLPI2C_MasterNackDetectFlag) if(LPI2C_MasterWaitForTxFifoAllEmpty(imxrt_i2c->I2C) != kStatus_Success)
{ {
i = 0;
break;
}
if (LPI2C_MasterGetStatusFlags(imxrt_i2c->I2C) & kLPI2C_MasterNackDetectFlag)
{
i = 0;
break;
} }
if (LPI2C_MasterSend(imxrt_i2c->I2C, imxrt_i2c->msg[i].buf, imxrt_i2c->msg[i].len) != kStatus_Success) if (LPI2C_MasterSend(imxrt_i2c->I2C, imxrt_i2c->msg[i].buf, imxrt_i2c->msg[i].len) != kStatus_Success)
@ -261,11 +346,12 @@ static rt_size_t imxrt_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
break; break;
} }
} }
}
if (LPI2C_MasterStop(imxrt_i2c->I2C) != kStatus_Success)
if (LPI2C_MasterStop(imxrt_i2c->I2C) != kStatus_Success) {
{ i = 0;
i = 0; }
} }
imxrt_i2c->msg = RT_NULL; imxrt_i2c->msg = RT_NULL;
@ -341,6 +427,31 @@ int rt_hw_i2c_init(void)
rt_i2c_bus_device_register(&lpi2c4.parent, lpi2c4.device_name); rt_i2c_bus_device_register(&lpi2c4.parent, lpi2c4.device_name);
#endif /* BSP_USING_I2C4 */ #endif /* BSP_USING_I2C4 */
#if defined(BSP_USING_I2C5)
LPI2C_MasterGetDefaultConfig(&masterConfig);
#if defined(HW_I2C5_BADURATE_400kHZ)
masterConfig.baudRate_Hz = 400000U;
#elif defined(HW_I2C5_BADURATE_100kHZ)
masterConfig.baudRate_Hz = 100000U;
#endif /* HW_I2C5_BADURATE_400kHZ */
lpi2c5.clock_root = kCLOCK_Root_Lpi2c5;
imxrt_lpi2c_configure(&lpi2c5, &masterConfig);
rt_i2c_bus_device_register(&lpi2c5.parent, lpi2c5.device_name);
#endif /* BSP_USING_I2C5 */
#if defined(BSP_USING_I2C6)
LPI2C_MasterGetDefaultConfig(&masterConfig);
#if defined(HW_I2C6_BADURATE_400kHZ)
masterConfig.baudRate_Hz = 400000U;
#elif defined(HW_I2C6_BADURATE_100kHZ)
masterConfig.baudRate_Hz = 100000U;
#endif /* HW_I2C6_BADURATE_400kHZ */
lpi2c6.clock_root = kCLOCK_Root_Lpi2c6;
imxrt_lpi2c_configure(&lpi2c6, &masterConfig);
rt_i2c_bus_device_register(&lpi2c6.parent, lpi2c6.device_name);
#endif /* BSP_USING_I2C6 */
#endif /* MIMXRT1015_SERIES */ #endif /* MIMXRT1015_SERIES */
return 0; return 0;